Last month, AT&T confirmed that an HSUPA-enabling update was in the works for the Motorola ATRIX 4G and was expected to hit sometime in April. Well... April is here and guess what? It looks like they may actually deliver on that promise.
nate2569, a user over at the XDA forums, received not one, but two mysterious updates on his ATRIX yesterday evening. The first one was a software update to bring the system up to version 1.75 and there was some initial confusion, so nate2569 uploaded a picture displaying some of the "About Phone" contents for proof.